PlainWater
States → Florida

Community Water System · PWS FL3420761

Little Lake Weir Subdivision

Des Peres, Florida 63131 - drinking water served from groundwater sources to 1,138 people, tracked in EPA SDWIS and UCMR5.

1,138
People served
60
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 60 drinking-water violations at Little Lake Weir Subdivision - above the Florida per-system average.

60
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
1,138
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Little Lake Weir Subdivision

Little Lake Weir Subdivision is a public/private-owned community water system that delivers drinking water to 1,138 residents in Des Peres, Florida (Marion County) through 455 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 60 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 34 monitoring and reporting violations are on file. The most recent violation on record dates to 2017.

The most frequently cited contaminant at this system is Total Haloacetic Acids (HAA5), recorded in 6 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Florida, EPA tracks 5,093 public water systems serving 22,381,282 people, with 184,355 cumulative violations and 24,266 health-based violations on record. About 93% of systems in the state carry at least one violation, and state-wide the average per system is 36.2 violations. Statewide, 218 of 402 UCMR5-tested systems have reported PFAS detections (54.2%).

Little Lake Weir Subdivision's 60 violations sit above the Florida average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
1,138
Total Violations
60
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Public/Private
Connections
455
County
Marion
School/Daycare
No
MCL Violations
0
Monitoring Violations
34
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Total Haloacetic Acids (HAA5) MR 6 2017
TTHM MR 6 2017
Gross Alpha, Excl. Radon and U MR 5 1986
Nitrate MR 2 1987
Chromium MR 2 1987
Cadmium MR 2 1987
Selenium MR 2 1987
Barium MR 2 1987
Arsenic MR 2 1987
Fluoride MR 2 1987
Mercury MR 2 1987
Consumer Confidence Rule Other 1 2004
Coliform (TCR) MR 1 1998

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Little Lake Weir Subdivision.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID FL3420761 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Florida Drinking Water Authority

Florida Department of Environmental Protection, Drinking Water Program is the primacy agency that licenses and inspects Little Lake Weir Subdivision under EPA-delegated authority.

Open FL regulator portal

Source: Florida Department of Environmental Protection, Drinking Water Program

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2017 Total Haloacetic Acids (HAA5) MR 6 SDWIS / FL3420761 / 2456
2017 TTHM MR 6 SDWIS / FL3420761 / 2950
2004 Consumer Confidence Rule Other 1 SDWIS / FL3420761 / 7000
1998 Coliform (TCR) MR 1 SDWIS / FL3420761 / 3100
1987 Nitrate MR 2 SDWIS / FL3420761 / 1040
1987 Chromium MR 2 SDWIS / FL3420761 / 1020
1987 Cadmium MR 2 SDWIS / FL3420761 / 1015
1987 Selenium MR 2 SDWIS / FL3420761 / 1045
1987 Barium MR 2 SDWIS / FL3420761 / 1010
1987 Arsenic MR 2 SDWIS / FL3420761 / 1005
1987 Fluoride MR 2 SDWIS / FL3420761 / 1025
1987 Mercury MR 2 SDWIS / FL3420761 / 1035
1986 Gross Alpha, Excl. Radon and U MR 5 SDWIS / FL3420761 / 4000

How Little Lake Weir Subdivision Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Little Lake Weir Subdivision Florida avg Federal benchmark
Total violations 60 36.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 4.8 Indicates a contaminant exceeded a federal MCL
PFAS detection None 54.2% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 1,138 4,395 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 5,093 regulated public water systems in Florida.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Little Lake Weir Subdivision water safe to drink? ▼
Little Lake Weir Subdivision (PWS ID: FL3420761) has 60 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,138 people using Groundwater sources.
How many people does Little Lake Weir Subdivision serve? ▼
Little Lake Weir Subdivision serves 1,138 people in Des Peres, Florida. It is a Public/Private-owned system using Groundwater water sources with 455 service connections.
What type of violations does Little Lake Weir Subdivision have? ▼
Little Lake Weir Subdivision has 60 total violations: 0 health-based violations (MCL exceedances or treatment failures), 34 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Little Lake Weir Subdivision water? ▼
No PFAS testing data is available for Little Lake Weir Subdivision under the EPA's UCMR5 monitoring program.
What water source does Little Lake Weir Subdivision use? ▼
Little Lake Weir Subdivision uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.